fixes for pep8/pep484

Change-Id: Ic6c0ec5dcc08acf861b6589299c83b178824d440

Author: zzzeek

dogpile/cache/region.py

@@ -823,7 +823,9 @@ def _get_cache_value(
         )
         return value
 
-    def _unexpired_value_fn(self, expiration_time, ignore_expiration):
+    def _unexpired_value_fn(
+        self, expiration_time: Optional[float], ignore_expiration: bool
+    ) -> Callable[[CacheReturnType], CacheReturnType]:
         if ignore_expiration:
             return lambda value: value
         else:

setup.cfg

@@ -5,6 +5,7 @@ ignore =
     A003,A005
     D,
     E203,E305,E711,E712,E721,E722,E741,
+    I300,
     N801,N802,N806,
     RST304,RST303,RST299,RST399,
     W503,W504